Holley EFI Terminator X Max – Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3

Holley EFI Terminator X Max – Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3

The Holley EFI Terminator X Max – Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 is a high-performance standalone EFI system designed specifically for GM LS engines with 58x crank and drive-by-wire throttle bodies. It delivers precise fuel and ignition control, self-tuning capabilities, and advanced features to unlock your engine’s full potential while simplifying tuning and installation.

Key Features

• Designed for GM 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with 58x crank, 4x cam, and drive-by-wire throttle body
• Real-time fuel map learning for easy and accurate tuning
• High impedance injector drivers support stock LS and Holley EFI injectors (EV6 style)
• Integrated Bosch LSU 4.9 wideband O2 sensor for precise AFR control
• On-board 1bar MAP sensor ideal for naturally aspirated or nitrous applications
• 4 programmable inputs and outputs for accessories, boost control, nitrous, and more
• Advanced boost and nitrous control with multi-stage and progressive options
• Compact ECU with diagnostic LEDs and included 3.5″ touchscreen handheld for tuning and data logging
• Plug-and-play harnesses and base maps get you on the road quickly

Fitment

• GM Gen IV LS 4.8L, 5.3L, 6.0L truck engines
• LS2 and LS3 engines with 58x crank and 4x cam sensors
• Drive-by-wire throttle body equipped vehicles

Note: Verify engine and sensor compatibility before ordering. Requires supporting components like pedal assembly (recommended part number 10379038). Fuel injectors, fuel pump, and other hardware not included.